| Summary: | 碩士 === 國立交通大學 === 網路工程研究所 === 101 === In 2003, the Parlay group proposed a concept and technique of the web service and proposed the other suite of Open Services Architecture (OSA) specifications, Parlay X. The Parlay X Application Programming Interface (API) defines a set of easy-to-use API, which utilizes the web service for application developer to access telecommunications functions more easily.
In this thesis, we use Parlay X-based Internet-Mobile platform called IBM WebSphere software for Telecom (WsT). To accommodate the telecom services (i.e., Short Message Service (SMS), Multimedia Messaging Service (MMS)) on IBM WsT, a set of API named OpenAPI is implemented. In web-based SMS, if the short message delivers failed, the Short Message Service Center (SMSC) retransmits the short message until the short message is successfully delivered. This procedure keeps the mobile user waiting a long time to determine the short message delivery status. The thesis studies the SMS behaviors and investigates the OpenAPI SMS performance. To improve the OpenAPI SMS delivery delay, a timeout timer is implemented. Our research also predicts SMS delivery failure and provides guidelines to select appropriate timeout timer values for OpenAPI SMS.
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